[MUSIC] We just have to look at the information on board. Is an example of what effects quite complicated to make any sense of this. Depends on the distance and viceversa if they look at it here and measure it so many knots. There's much better information we had available. Information that's called GRIB and GRIB is short for gridded binary. It was invented in 1988 roughly as a data exchange format by the World Meteorological Organization to exchange large sets of information between the various countries. It's something that if you ever you will hear about it, the GRIB files, the GRIB files. Well, it's nothing, it's like the PDF files but GRIB is a specific format for If you open it up in an editor, it looks pretty chaotic. No one can make any sense out of this, but you can see that it starts with the four letters, GRIB, and that comes back again and again. It's a standard format, it's the same in each country in the world, every meteorological organization that makes use of it. Universal standard, and they exchange information like this. However, once you open it up and that will take you back to this picture. Once you open up a grid file it becomes completely different. It becomes like this. All of a sudden you can see the wind speed, and if you put your mouse here, it will say over here how many knots is blowing, what the pressure is, what the direction is. Over here if it's raining or not, and how much. It's called motif time [INAUDIBLE]. Here for the past ten days, various hours. We can step through that as we please. So all this end road information that needed a lot of interpretation has become usable by a computer. Today we live in the age of computers. So we need that kind of information to make calculations. And assumptions and predictions for our strategy. So what is available on this famous grid format? Well first of all there are plenty of different models. Alright. A higher resolution model. That's a high resolution model. This is a high resolution model of the United States here. High resolution means the calculations are done at a smaller scale, taking into account smaller scale of things like sea breezes, but even like mountains, headlands. All that sort of stuff. What kind of variables are available? Hundreds. Literally hundreds of variables are available. Ultraviolet radiation. All kinds of stuff. On lots of different levels. As I've said, your only interest in the bottom thirty meters of the atmosphere. That's where we're sailing, that's where we live in, right? Meteorologists are interested in the atmosphere to 11 kilometers. Plains, or all kinds of stuff, right? So, we're only interested in the boat. And for that, we choose simple variables. Wind at ten meters, rain, pressure, that's all we need. We only take very small part of what's available in this group format to determine our strategy and where we want to go.